<script>
import { enquireScreen } from 'enquire-js';
import AllDemo from '../demo';
import Header from './header';
import Footer from './footer';
import CarbonAds from './CarbonAds';
import Geektime from './geektime';
import Sponsors from './sponsors';
import zhCN from 'antd/locale-provider/zh_CN';
import enUS from 'antd/locale-provider/default';
import sortBy from 'lodash/sortBy';
import { isZhCN } from '../util';
import { Provider, create } from '../../components/_util/store';
import NProgress from 'nprogress';
import MobileMenu from '../../components/vc-drawer/src';

const docsList = [
  { key: 'introduce', enTitle: 'Ant Design of Vue', title: 'Ant Design of Vue' },
  { key: 'getting-started', enTitle: 'Getting Started', title: '快速上手' },
  { key: 'use-with-vue-cli', enTitle: 'Use in vue-cli', title: '在 vue-cli 中使用' },
  { key: 'customize-theme', enTitle: 'Customize Theme', title: '定制主题' },
  { key: 'changelog', enTitle: 'Change Log', title: '更新日志' },
  { key: 'i18n', enTitle: 'Internationalization', title: '国际化' },
  { key: 'faq', enTitle: 'FAQ', title: '常见问题' },
  { key: 'sponsor', enTitle: 'Sponsor', title: '支持我们' },
  { key: 'download', enTitle: 'Download Design Resources', title: '下载设计资源' },
];

let isMobile = false;
enquireScreen(b => {
  isMobile = b;
});

export default {
  props: {
    name: String,
    showDemo: Boolean,
    showApi: Boolean,
  },
  data () {
    this.store = create({
      currentSubMenu: [],
    });
    this.subscribe();
    return {
      showSideBars: true,
      currentSubMenu: [],
      sidebarHeight: document.documentElement.offsetHeight,
      isMobile,
    };
  },
  provide () {
    return {
      demoContext: this,
    };
  },
  watch: {
    '$route.path': function () {
      this.store.setState({ currentSubMenu: [] });
      this.addSubMenu();
    },
  },
  beforeDestroy () {
    if (this.unsubscribe) {
      this.unsubscribe();
    }
    clearTimeout(this.timer);
    if (this.resizeEvent) {
      this.resizeEvent.remove();
    }
    if (this.debouncedResize && this.debouncedResize.cancel) {
      this.debouncedResize.cancel();
    }
  },
  mounted () {
    this.$nextTick(() => {
      this.addSubMenu();
      const nprogressHiddenStyle = document.getElementById('nprogress-style');
      if (nprogressHiddenStyle) {
        this.timer = setTimeout(() => {
          nprogressHiddenStyle.parentNode.removeChild(nprogressHiddenStyle);
        }, 0);
      }
      enquireScreen(b => {
        this.isMobile = !!b;
      });
    });
  },
  methods: {
    addSubMenu () {
      if (this.$route.path.indexOf('/docs/vue/') !== -1) {
        this.$nextTick(() => {
          const menus = [];
          const doms = [...this.$refs.doc.querySelectorAll(['h2', 'h3'])];
          doms.forEach(dom => {
            const id = dom.id;
            if (id) {
              const title = dom.textContent.split('#')[0].trim();
              menus.push({ cnTitle: title, usTitle: title, id });
            }
          });
          this.currentSubMenu = menus;
        });
      }
    },
    subscribe () {
      const { store } = this;
      this.unsubscribe = store.subscribe(() => {
        this.currentSubMenu = this.store.getState().currentSubMenu;
      });
    },
    getSubMenu (isCN) {
      const currentSubMenu = this.currentSubMenu;
      const lis = [];
      currentSubMenu.forEach(({ cnTitle, usTitle, id }) => {
        const title = isCN ? cnTitle : usTitle;
        lis.push(<a-anchor-link key={id} href={`#${id}`} title={title} />);
      });
      const showApi = this.$route.path.indexOf('/components/') !== -1;
      return (
        <a-anchor offsetTop={100} class='demo-anchor'>
          {lis}
          {showApi ? <a-anchor-link key='API' title='API' href='#API' /> : ''}
        </a-anchor>
      );
    },
    getDocsMenu (isCN, pagesKey) {
      const docsMenu = [];
      docsList.forEach(({ key, enTitle, title }, index) => {
        const k = isCN ? `${key}-cn` : key;
        pagesKey.push({ name: k,
          url: `/docs/vue/${k}/`,
          title: isCN ? title : enTitle,
        });
        docsMenu.push(<a-menu-item key={k}>
          <router-link to={`/docs/vue/${k}/`}>{isCN ? title : enTitle }</router-link>
        </a-menu-item>);
      });
      return docsMenu;
    },
    resetDocumentTitle (component, name, isCN) {
      let titleStr = 'Ant Design Vue';
      if (component) {
        const { subtitle, title } = component;
        const componentName = isCN ? subtitle + ' ' + title : title;
        titleStr = componentName + ' - ' + titleStr;
      } else {
        const currentKey = docsList.filter((item) => {
          return item.key === name;
        });
        if (currentKey.length) {
          titleStr = (isCN ? currentKey[0]['title'] : currentKey[0]['enTitle']) + ' - ' + titleStr;
        }
      }
      document.title = titleStr;
    },
    mountedCallback () {
      NProgress.done();
      document.documentElement.scrollTop = 0;
    },
  },

  render () {
    const name = this.name;
    const isCN = isZhCN(name);
    const titleMap = {};
    const menuConfig = {
      General: [],
      Layout: [],
      Navigation: [],
      'Data Entry': [],
      'Data Display': [],
      Feedback: [],
      Other: [],
    };
    const pagesKey = [];
    let prevPage = null;
    let nextPage = null;
    const searchData = [];
    for (const [title, d] of Object.entries(AllDemo)) {
      const type = d.type || 'Other';
      const key = `${title.replace(/(\B[A-Z])/g, '-$1').toLowerCase()}`;
      titleMap[key] = title;
      AllDemo[title].key = key;
      menuConfig[type] = menuConfig[type] || [];
      menuConfig[type].push(d);
    }
    const docsMenu = this.getDocsMenu(isCN, pagesKey);
    const reName = name.replace(/-cn\/?$/, '');
    const MenuGroup = [];
    for (const [type, menus] of Object.entries(menuConfig)) {
      const MenuItems = [];
      sortBy(menus, ['title']).forEach(({ title, subtitle }) => {
        const linkValue = isCN
          ? [<span>{title}</span>, <span class='chinese'>{subtitle}</span>]
          : [<span>{title}</span>];
        let key = `${title.replace(/(\B[A-Z])/g, '-$1').toLowerCase()}`;
        if (isCN) {
          key = `${key}-cn`;
        }
        pagesKey.push({
          name: key,
          url: `/components/${key}/`,
          title: isCN ? `${title} ${subtitle}` : title,
        });
        searchData.push({
          title,
          subtitle,
          url: `/components/${key}/`,
        });
        MenuItems.push(<a-menu-item key={key}>
          <router-link to={`/components/${key}/`}>{linkValue}</router-link>
        </a-menu-item>);
      });
      MenuGroup.push(<a-menu-item-group title={type}>{MenuItems}</a-menu-item-group>);
    }
    pagesKey.forEach((item, index) => {
      if (item.name === name) {
        prevPage = pagesKey[index - 1];
        nextPage = pagesKey[index + 1];
      }
    });
    let locale = zhCN;
    if (!isCN) {
      locale = enUS;
    }
    const config = AllDemo[titleMap[reName]];
    this.resetDocumentTitle(config, reName, isCN);
    const { isMobile } = this;
    return (
      <div class='page-wrapper'>
        <Header searchData={searchData} name={name}/>
        <a-locale-provider locale={locale}>
          <div class='main-wrapper'>
            <a-row>
              {isMobile ? <MobileMenu ref='sidebar' wrapperClassName='drawer-wrapper'>
                <a-menu
                  class='aside-container menu-site'
                  selectedKeys={[name]}
                  defaultOpenKeys={['Components']}
                  inlineIndent={40}
                  mode='inline'>
                  {docsMenu}
                  <a-sub-menu title={`Components(${searchData.length})`} key='Components'>
                    {MenuGroup}
                  </a-sub-menu>
                </a-menu>
              </MobileMenu>
              :
                <a-col ref='sidebar' class='site-sidebar main-menu' xxl={4} xl={5} lg={5} md={6} sm={8} xs={12}>
                <a-affix>
                  <section class="main-menu-inner">
                    <Sponsors title={isCN ? '赞助商' : 'Sponsors'}/>
                    <a-menu
                      class='aside-container menu-site'
                      selectedKeys={[name]}
                      defaultOpenKeys={['Components']}
                      inlineIndent={40}
                      mode='inline'>
                      {docsMenu}
                      <a-sub-menu title={`Components(${searchData.length})`} key='Components'>
                        {MenuGroup}
                      </a-sub-menu>
                    </a-menu>
                  </section>
                </a-affix>
              </a-col>
              }
              <a-col xxl={20} xl={19} lg={19} md={18} sm={24} xs={24}>
                <section class='main-container main-container-component'>
                  <CarbonAds isMobile={isMobile}/>
                  {!isMobile ? <div class='toc-affix' style='width: 150px;'>
                    {this.getSubMenu(isCN)}
                  </div> : null}
                  {this.showDemo ? <Provider store={this.store} key={isCN ? 'cn' : 'en'}>
                    <router-view
                      class={`demo-cols-${config.cols || 2}`}
                      {...{ directives: [
                        {
                          name: 'mountedCallback',
                          value: this.mountedCallback,
                        },
                      ] }}
                    ></router-view>
                  </Provider> : ''}
                  {this.showApi ? <div class='markdown api-container' ref='doc'>
                    <router-view
                      {...{ directives: [
                        {
                          name: 'mountedCallback',
                          value: this.mountedCallback,
                        },
                      ] }}
                    ></router-view>
                  </div> : ''}
                </section>
                <section class='prev-next-nav'>
                  {prevPage ? <router-link class='prev-page' to={`${prevPage.url}`}><a-icon type='left' />&nbsp;&nbsp;{prevPage.title}</router-link> : ''}
                  {nextPage ? <router-link class='next-page' to={`${nextPage.url}`}>{nextPage.title}&nbsp;&nbsp;<a-icon type='right' /></router-link> : ''}
                </section>
                <Footer ref='footer' isCN={isCN}/>
              </a-col>
            </a-row>
          </div>
        </a-locale-provider>
        { name.indexOf('back-top') === -1 ? <a-back-top /> : null }
        { isCN && <Geektime isMobile={isMobile} /> }
      </div>
    );
  },
};
</script>
